CN202228480U - Concrete pumping equipment and its pumping control system - Google Patents
Concrete pumping equipment and its pumping control system Download PDFInfo
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- CN202228480U CN202228480U CN201120362328XU CN201120362328U CN202228480U CN 202228480 U CN202228480 U CN 202228480U CN 201120362328X U CN201120362328X U CN 201120362328XU CN 201120362328 U CN201120362328 U CN 201120362328U CN 202228480 U CN202228480 U CN 202228480U
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Abstract
The utility model provides a concrete pumping equipment and pumping control system thereof. The pumping control system comprises a hydraulic supply system, a distribution valve control system (10) used for controlling a distribution valve and a master cylinder control system (20) used for controlling a master pumping cylinder, wherein the hydraulic supply system is connected to the distribution valve control system (10) through a first master oil way and is connected to the master cylinder control system (20) through a second master oil way, one of the distribution valve control system (10) and the master cylinder control system (20) comprises an electric control reversing switch which monitors the system and outputs a reversing signal, and the other control system comprises a hydraulic control reversing switch which monitors the system and outputs the reversing signal. According to the utility model discloses a pumping control system adopts the two pump control methods of accuse of electricity liquid, for the pumping control system of current concrete pumping equipment provides more fungible modes, makes pumping control system have more diversified solution.
Description
Technical field
The utility model relates to the hydraulic machinery field, in particular to a kind of concrete pumping equipment and pumping control system thereof.
Background technique
The fundamental function of concrete pump is accomplished its pumpdown through concrete cylinder suction-pumping-suction-pumping.And to accomplish the conversion of suction-pumping, must guarantee that the correct coordination of pumping oil cylinder and distributing valve could be accomplished.Desirable state is to have only after the distributing valve full action puts in place, and the pumping oil cylinder just begins outside propelling movement.
There is multiple logic control in the correct coordination that is directed against pumping oil cylinder and distributing valve at present both at home and abroad, and logic control methods such as wherein mainly commonly used having is automatically controlled, full hydraulic control lack a kind of comprehensive controlling method.
The model utility content
The utility model aims to provide a kind of concrete pumping equipment and pumping control system thereof; Adopt the pumping controlling method of the two controls of electric liquid; For the pumping control system of current concrete pumping equipment provides more alternative way, make the pumping control system of concrete pumping equipment have more diversified solution.
To achieve these goals; An aspect according to the utility model; A kind of pumping control system of concrete pumping equipment is provided; Comprise fluid pressure supply system, be used to control the distributing valve control system of distributing valve and be used to control the master cylinder control system that main pump send oil cylinder that fluid pressure supply system is connected to the distributing valve control system through first working connection, is connected to the master cylinder control system through second working connection; One of them comprises the electric control reversing switch distributing valve control system and master cylinder control system, and another control system comprises the liquid controlled reversing switch.
Further, the master cylinder control system comprises that main pump send oil cylinder and electric control reversing switch, and the electric control reversing switch is a position switch, and position switch is arranged on the travel paths that main pump send oil cylinder, and send control signal to be passed to the distributing valve control system main pump.
Further; The distributing valve control system comprises distributing valve driving oil cylinder and electric control reversing switch; The electric control reversing switch is a position switch, and position switch is arranged on the travel paths of distributing valve driving oil cylinder, and the distributing valve control signal is passed to the master cylinder control system.
Further; The master cylinder control system comprises that main pump send oil cylinder and liquid controlled reversing switch; The liquid controlled reversing switch is a master cylinder hydraulic pressure signal transmitter, and master cylinder hydraulic pressure signal transmitter is arranged on the end of travel that main pump send oil cylinder, and send control signal to be passed to the distributing valve control system main pump.
Further; The distributing valve control system also comprises distributing valve solenoid directional control valve, first hydraulicchange-over valve and distributing valve hydraulicchange-over valve; Wherein, first hydraulicchange-over valve is connected with master cylinder hydraulic pressure signal transmitter, and the distributing valve solenoid directional control valve is connected to first working connection; The distributing valve solenoid directional control valve drives the switching-over of distributing valve hydraulicchange-over valve through first hydraulicchange-over valve, and the distributing valve hydraulicchange-over valve is connected to the distributing valve driving oil cylinder.
Further; The master cylinder control system comprises that also main pump send solenoid directional control valve and main pump to send hydraulicchange-over valve; Wherein main pump send solenoid directional control valve to be connected to first working connection, and drives main pump and send the hydraulicchange-over valve switching-over, and main pump send hydraulicchange-over valve to be connected to first working connection respectively and main pump send oil cylinder.
Further, position switch is that position limit switch is perhaps near switch.
Further, distributing valve is gate valve or S valve.
According to the utility model on the other hand, a kind of concrete pumping equipment is provided, has comprised the pumping control system of above-mentioned concrete pumping equipment.
Technological scheme according to the utility model; The pumping control system of concrete pumping equipment comprises fluid pressure supply system, distributing valve control system and master cylinder control system; One of them comprises the electric control reversing switch distributing valve control system and master cylinder control system, and another control system comprises the liquid controlled reversing switch.Two systems adopt respectively and automatically controlledly control the reverser switching-over with mode hydraulic control, and the mode than existing pure automatically controlled or pure hydraulic control for the pumping control system provides more kinds of solutions, makes the flexibility of pumping control system higher.
Description of drawings
The accompanying drawing that constitutes the part of the utility model is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 shows the structural representation according to the pumping control system of first embodiment's of the utility model concrete pumping equipment;
Fig. 2 shows the structural representation according to the pumping control system of second embodiment's of the utility model concrete pumping equipment;
Fig. 3 shows the structural representation according to the pumping control system of the 3rd embodiment's of the utility model concrete pumping equipment; And
Fig. 4 shows the structural representation according to the pumping control system of the 4th embodiment's of the utility model concrete pumping equipment.
Embodiment
Hereinafter will and combine embodiment to specify the utility model with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment according to the utility model; The pumping control system of concrete pumping equipment comprises fluid pressure supply system, distributing valve control system 10 and master cylinder control system 20; Fluid pressure supply system is connected to distributing valve control system 10 through first working connection; Fluid pressure supply system is connected to master cylinder control system 20 through second working connection; One of them comprises the electric control reversing switch of this system being monitored and exports commutation signal distributing valve control system 10 and master cylinder control system 20, and another control system comprises the liquid controlled reversing switch to what this system monitored and exported commutation signal.When distributing valve control system 10 comprised the electric control reversing switch, then master cylinder control system 20 adopted the liquid controlled reversing switch.Identical, when master cylinder control system 20 adopted the electric control reversing switch, then distributing valve control system 10 adopted the liquid controlled reversing switch.Here, distributing valve can be gate valve or S valve.
As shown in Figure 1; First embodiment according to the utility model; Adopt gate valve as distributing valve; The pumping control system of flashboard type concrete pumping equipment comprises fluid pressure supply system, distributing valve control system 10 and master cylinder control system 20, and fluid pressure supply system is connected with master cylinder control system 20 with distributing valve control system 10 through connecting oil circuit respectively, and two pressure oils that system works is required are provided.The distributing valve control system 10 here is the flashboard pump control system.
Fluid pressure supply system comprises fuel tank 30, and fuel tank 30 is connected with main pump 50 through connecting oil circuit, is provided with filter 60 between main pump 50 and the fuel tank 30, and the fluid that gets into main pump 50 is filtered, and prevents that impurity from getting in the hydraulic system.The oil outlet of main pump 50 is divided into two working connections, and first working connection is connected to distributing valve control system 10, the second working connections and is connected to master cylinder control system 20.Also be provided with accumulator 70 on first working connection, the output terminal of accumulator 70 is communicated to distributing valve control system 10 and sequence valve 40 respectively.Preferably, accumulator 70 is a bladder accumulator.
Distributing valve control system 10 comprises two flashboards, drives distributing valve control oil cylinder, distributing valve solenoid directional control valve 16, first hydraulicchange-over valve 15 and the distributing valve hydraulicchange-over valve 14 that is connected with flashboard.Distributing valve control oil cylinder comprises first distributing valve control oil cylinder 11 and second distributing valve control oil cylinder 12, controls stretching out to be provided with on the direction position switch 13 being arranged respectively of oil cylinder 12 at first distributing valve control oil cylinder 11 and second distributing valve.Position switch 13 is a position limit switch or near switch, is fixedly installed on the flashboard support, the not moved end of oil cylinder or other standing part.It is terminal or flashboard is terminal that the stop portion of position switch 13 is positioned at the distributing valve control oil cylinder of flashboard when fully closed, so that put in place in the motion of distributing valve control oil cylinder, sends control signal after the complete closure of flashboard.Can certainly not limit position switch 13 stop portion the position is set, and draw the position structure that cooperates with this stop portion, after the complete closure of flashboard, in time to send control signal from the telescopic section or the flashboard of distributing valve control oil cylinder.
In order to make position switch 13 have better adaptability,, and be convenient to the closed sensed position of flashboard is adjusted so that make its positioning control needs that satisfy different flashboard pumps.Position switch 13 is along the adjustable positions on the travel paths of distributing valve control oil cylinder.When position switch 13 is installed, at first can confirm one and estimate the position estimate the position at this then and detect, whether the test flashboard arrives this closed fully when estimating the position.If closed fully, then can fix the position of position switch 13, if can not be closed fully, then the position of position switch 13 be adjusted, proceed debugging, easy to use and reliable.
First valve port of distributing valve solenoid directional control valve 16 is connected to first working connection, and second valve port is connected to fuel tank 30, the three valve ports and links to each other with second valve port with first valve port of first hydraulicchange-over valve 15 respectively with the 4th valve port.The 3rd valve port of first hydraulicchange-over valve 15 links to each other with the two ends control hydraulic fluid port of distributing valve hydraulicchange-over valve 14 respectively with the 4th valve port, and the two ends control hydraulic fluid port of first hydraulicchange-over valve 15 links to each other with master cylinder control system 20.First valve port of distributing valve hydraulicchange-over valve 14 is connected to first working connection, and second valve port is connected to master cylinder control system 20, the three valve ports and the 4th valve port is connected to first distributing valve control oil cylinder 11 and second distributing valve control oil cylinder 12.
Master cylinder control system 20 comprises that main pump send oil cylinder, master cylinder hydraulic pressure signal transmitter, main pump to send solenoid directional control valve 23 and main pump to send hydraulicchange-over valve 24.Main pump send oil cylinder to comprise that first main pump send the oil cylinder 21 and second main pump to send 22, two main pumps of oil cylinder to send oil cylinder to carry out the action of suction and feeding respectively.Master cylinder hydraulic pressure signal transmitter is separately positioned on the end position that two main pumps send oil cylinder, and signal end is connected to two control hydraulic fluid ports of first hydraulicchange-over valve 15 respectively.
Main pump send first valve port of solenoid directional control valve 23 to be connected to sequence valve 60, the second valve ports and is connected to fuel tank 30, the three valve ports and the 4th valve port and is connected to the two ends control hydraulic fluid port that main pump send hydraulicchange-over valve 24 respectively.Main pump send first valve port of hydraulicchange-over valve 24 to be connected to second working connection, and second valve port is connected to fuel tank 30, the three valve ports and the 4th valve port and is connected to two main pumps respectively and send oil cylinder.
As shown in Figure 2; Second embodiment according to the utility model; Adopt the S valve as distributing valve, the structure of itself and first embodiment's pumping control system is basic identical, and difference is; Distributing valve control oil cylinder among first embodiment is a flashboard control oil cylinder, and the distributing valve control oil cylinder in the present embodiment is S valve control oil cylinder.S valve control oil cylinder comprises S valve control oil cylinder 17 and the 2nd S valve control oil cylinder 18.Position switch 13 is arranged on the end of travel of S pump control oil cylinder, is used for detecting the operating position of S valve, and sends control signal to master cylinder control system 20.
As shown in Figure 3; The 3rd embodiment according to the utility model; Adopt gate valve as distributing valve, the structure of itself and first embodiment's pumping control system is basic identical, and difference is; It is to send the terminal hydraulic pressure signal transmitter of oil cylinder to control through being arranged on main pump that main pump among first embodiment send the commutation signal at oil cylinder place, and the main pump in the present embodiment to send the terminal commutation signal of oil cylinder be to control through the position switch 13 that is arranged on the travel paths that main pump send oil cylinder.The terminal commutation signal of distributing valve control oil cylinder among first embodiment is controlled through position switch 13, and the terminal commutation signal of the control of the distributing valve in present embodiment oil cylinder realizes through the hydraulic pressure signal transmitter.In addition; In the present embodiment first hydraulicchange-over valve 15 between distributing valve hydraulicchange-over valve 14 among first embodiment and the distributing valve solenoid directional control valve 16 is removed, and between master cylinder solenoid directional control valve 23 and master cylinder hydraulicchange-over valve 24, added one first hydraulicchange-over valve 15.
As shown in Figure 4; According to the 4th embodiment of the utility model, adopt the S valve as distributing valve, itself and the 3rd embodiment's difference is; Distributing valve control oil cylinder among the 3rd embodiment is a flashboard control oil cylinder, and the distributing valve control oil cylinder in the present embodiment is S valve control oil cylinder.S valve control oil cylinder comprises S valve control oil cylinder 17 and the 2nd S valve control oil cylinder 18.Position switch 13 is arranged on the end of travel of S pump control oil cylinder, is used for detecting the operating position of S valve, and sends control signal to master cylinder control system 20.
Control procedure according to first embodiment's of the utility model pumping control system is following:
Start the enable switch of flashboard pump, electromagnet 1DT, 2DT, 4DT get electric, and flashboard is in normal pumping state.Pressure oil is exported from main pump 50, advances along first working connection and second working connection respectively then.Get into the pressure oil of first working connection, a part gets into fluid accumulation pressure energy in the accumulator 70, and a part flows to distributing valve control system 10 and sequence valve 60 downstream respectively.
When the outlet pressure of main pump 50 was lower than the adjusting pressure of sequence valve 60, then sequence valve 60 cut out.Pressure oil in first working connection can't be delivered to main pump from sequence valve 60 and send hydraulicchange-over valve 24, so main pump send hydraulicchange-over valve 24 not have control oil, can not commutate, and first main pump send oil cylinder 21 to keep current states, and accumulator 70 continues accumulation of energys.The outlet pressure of main pump 50 continues to rise.Up to the adjusting pressure that reaches sequence valve 60, this moment, sequence valve 60 was opened.
The pressure oil that flows to sequence valve 60 flows to main pump from sequence valve 60 and send solenoid directional control valve 23, and main pump send solenoid directional control valve 23 left stations to open.Flow through main pump and send the pressure oil compressing main pump of solenoid directional control valve 23 to send the spool of hydraulicchange-over valve 24 to move to the right, main pump send the left station of hydraulicchange-over valve 24 to open.The pressure oil of second working connection send hydraulicchange-over valve 24 to flow to first main pump from main pump to send oil cylinder 21, the first main pumps to send the concrete cylinder of oil cylinder 21 outlet sides to be communicated with concrete outlet, and the oil cylinder piston bar stretches out, and begins to carry out pump action.Second main pump send the concrete cylinder of oil cylinder 22 outlet sides to be communicated with hopper, and piston rod bounces back, and stock is sucked in the concrete cylinder.When first main pump sent oil cylinder 21 to move to end of travel, master cylinder hydraulic pressure signal transmitter was controlled 15 switching-overs of first hydraulicchange-over valve to first hydraulicchange-over valve, 15 senders, is located at left station and is communicated with the position.
The pressure oil that flows to distributing valve control system 10 at first gets in the distributing valve solenoid directional control valve 16.Because it is electric that 4DT gets, the left station of distributing valve solenoid directional control valve 16 is communicated with.Pressure oil is flowed through from distributing valve solenoid directional control valve 16 behind first hydraulicchange-over valve 15, and the spool that drives distributing valve hydraulicchange-over valve 14 moves right, and the left station of distributing valve hydraulicchange-over valve 14 is communicated with.
The pressure oil of accumulating in the partial pressure oil of first working connection and the accumulator 70 flows to the rodless cavity of second distributing valve control oil cylinder 12 and the rod chamber of first distributing valve control oil cylinder 11 behind distributing valve hydraulicchange-over valve 14.The piston rod retraction of first distributing valve control oil cylinder 11, the flashboard of first distributing valve control oil cylinder 11 is packed up.The piston rod of second distributing valve control oil cylinder 12 stretches out, and the flashboard of second distributing valve control oil cylinder 12 is closed.When second distributing valve was controlled the complete closure of flashboard of oil cylinder 12, position switch 13 sent control signal, thus control 2DT dead electricity, 3DT gets electric, and then main pump send solenoid directional control valve 23 switching-overs.But because the hydraulic pressure of accumulator 70 and main pump 50 can discharge, pressure drops under the adjusting pressure of sequence valve 60, so sequence valve 60 cuts out, and main pump send hydraulicchange-over valve 24 not commutate, and first main pump send oil cylinder 21 maintenances to stretch out.This moment, main pump 50 pressure rose, and continued as the accumulator liquid storage and filled ability, rose to sequence valve 60 up to dispense pressure and opened.Because sequence valve 60 is opened; Pressure oil send the right working position of solenoid directional control valve to be delivered to the two ends control hydraulic fluid port that main pump send hydraulicchange-over valve 24 from main pump; Main pump send hydraulicchange-over valve 24 switching-overs, and main pump send the oil cylinder switching-over, send oil cylinder to move to end of travel up to main pump; Master cylinder hydraulic pressure signal transmitter sends control signal, so circulation.
Other several kinds of embodiments' the working principle and first embodiment are basic identical, no longer detail here.
According to the concrete pumping equipment of the utility model, comprise the pumping control system of above-mentioned concrete pumping equipment.
From foregoing description, can learn; The pumping control system of concrete pumping equipment comprises fluid pressure supply system, distributing valve control system and master cylinder control system; One of them comprises the electric control reversing switch distributing valve control system and master cylinder control system, and another control system comprises the liquid controlled reversing switch.Two systems adopt respectively and automatically controlledly control the reverser switching-over with mode hydraulic control, and the mode than existing pure automatically controlled or pure hydraulic control for the pumping control system provides more kinds of solutions, makes the flexibility of pumping control system higher.
More than be merely the preferred embodiment of the utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120362328XU CN202228480U (en) | 2011-09-26 | 2011-09-26 | Concrete pumping equipment and its pumping control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120362328XU CN202228480U (en) | 2011-09-26 | 2011-09-26 | Concrete pumping equipment and its pumping control system |
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| Publication Number | Publication Date |
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| CN202228480U true CN202228480U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120362328XU Expired - Lifetime CN202228480U (en) | 2011-09-26 | 2011-09-26 | Concrete pumping equipment and its pumping control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032421A (en) * | 2012-12-26 | 2013-04-10 | 中联重科股份有限公司 | Reversing hydraulic system and its control method, concrete pumping equipment |
| CN103062166A (en) * | 2013-01-24 | 2013-04-24 | 中国铁建重工集团有限公司 | Compound pumping electro-hydraulic system |
| CN104500466A (en) * | 2014-12-11 | 2015-04-08 | 中铁工程装备集团有限公司 | Continuous grouting hydraulic control system for synchronous grouting pump |
| CN115289108A (en) * | 2022-06-28 | 2022-11-04 | 中联重科股份有限公司 | Single-main-pump pumping hydraulic system and concrete pumping equipment |
-
2011
- 2011-09-26 CN CN201120362328XU patent/CN202228480U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032421A (en) * | 2012-12-26 | 2013-04-10 | 中联重科股份有限公司 | Reversing hydraulic system and its control method, concrete pumping equipment |
| CN103032421B (en) * | 2012-12-26 | 2015-04-22 | 中联重科股份有限公司 | Reversing hydraulic system and its control method, concrete pumping equipment |
| CN103062166A (en) * | 2013-01-24 | 2013-04-24 | 中国铁建重工集团有限公司 | Compound pumping electro-hydraulic system |
| CN104500466A (en) * | 2014-12-11 | 2015-04-08 | 中铁工程装备集团有限公司 | Continuous grouting hydraulic control system for synchronous grouting pump |
| CN104500466B (en) * | 2014-12-11 | 2016-05-18 | 中铁工程装备集团有限公司 | Tunneling synchronous mud injecting pump continuous grouting hydraulic control system |
| CN115289108A (en) * | 2022-06-28 | 2022-11-04 | 中联重科股份有限公司 | Single-main-pump pumping hydraulic system and concrete pumping equipment |
| CN115289108B (en) * | 2022-06-28 | 2026-02-06 | 中联重科股份有限公司 | Single main pump pumping hydraulic system and concrete pumping equipment |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
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| CX01 | Expiry of patent term |